Results 1 to 10 of about 14,645 (208)
Applied Sciences, 2020 This paper presents a nonionic surfactant in the anionic surfactant pair (ternary mixture) that influences the hydrophobicity of the alkaline–surfactant–polymer (ASP) slug within low-salinity formation water, an environment that constrains optimal ...
Shabrina Sri Riswati +4 more
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Shape and Structure Formation of Mixed Nonionic–Anionic Surfactant Micelles
Molecules, 2021 Aqueous solutions of a nonionic surfactant (either Tween20 or BrijL23) and an anionic surfactant (sodium dodecyl sulfate, SDS) are investigated, using small-angle neutron scattering (SANS).
Michael Ludwig +3 more
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The High Interfacial Activity of Betaine Surfactants Triggered by Nonionic Surfactant: The Vacancy Size Matching Mechanism of Hydrophobic Groups [PDF]
MoleculesAlkyl sulfobetaine shows a strong advantage in the compounding of surfactants due to the defects in the size matching of hydrophilic and hydrophobic groups.
Guoqiao Li +9 more
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Competitive Adsorption of Nonionic Surfactant and Nonionic Polymer on Silica
Langmuir, 2007 Competitive adsorption of the nonionic polymer poly(ethylene oxide) (PEO) and the nonionic surfactant of the type poly(ethylene oxide) alkyl ether from aqueous solutions on a silica surface is examined. From one-component solutions, both species readily adsorb onto silica and, in the bulk of mixed (two-component) solutions, polymer-surfactant complexes
Postmus, B.R. +3 more
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Interfaces Charged by a Nonionic Surfactant
The Journal of Physical Chemistry B, 2018 Highly hydrophobic, water-insoluble nonionic surfactants are often considered irrelevant to the ionization of interfaces at which they adsorb, despite observations that suggest otherwise. In the present study, we provide unambiguous evidence for the participation of a water-insoluble surfactant in interfacial ionization by conducting electrophoresis ...
Joohyung Lee +2 more
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Bending Elasticity of Nonionic Surfactant Layers
Langmuir, 2009 A novel approach to evaluate the bending elasticity of monolayers formed by nonionic surfactants with a rigid head group is introduced by means of considering head group repulsion as derived from the free energy of mixing rigid hydrophilic head groups with surrounding solvent molecules as well as contributions related to the hydrophobic tails. Explicit
Bergström, Lars Magnus, +1 more
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Mixing Effect of Anionic and Nonionic Surfactants on Micellization, Adsorption and Partitioning of Nonionic Surfactant [PDF]
Modern Applied Science, 2008 Nonionic surfactants are always good candidates for surfactant enhanced aquifer remediation (SEAR), enhanced oil recover (EOR) and insitu/ex-situ soil washing. Their wide application is based on their high solubilization capacities and their low bio-toxicity.
Ahmed Muherei, Mazen, Junin, Radzuan
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Energies, 2021 High mineralization of water complicates the use of foam in reservoir conditions. Anionic–nonionic surfactants are one of the best candidates for these conditions since they have both high surface activity and salt tolerance.
Emil R. Saifullin +8 more
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The influence of surfactants of different classes on the toxicity of diesel fuel for Saccharomycetes [PDF]
E3S Web of Conferences, 2023 The effect on the survival of the yeast S. cerevisiae of mixtures of diesel fuel (summer variety) with four representatives of different classes of surfactants – cationic (cetyltrimethylammonium bromide), anionic (sodium dodecyl sulfate), nonionic (Tween-
Zhdanova Galina +5 more
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Effect of Surfactants on Reverse Osmosis Membrane Performance
Separations, 2023 The aim of this study was to evaluate the performance of a reverse osmosis (RO) membrane in surfactant removal using various surfactant model aqueous solutions.
Aymen Halleb +3 more
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